A 2.0-kg block starts from rest on the positive x axis 3.0m from the origin and thereafter has an acceleration given by a = (4 .0m/s2)ˆ i−(3.0m/s2)ˆj. The torque, relative to the origin, acting on it at the end of 2 .0s is:

dopamine..

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less than one you can't create energy

current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete